package day240306.e2;

public class Student {
    // state
    int id;
    String name;
    int age;


    public Student() {

    }

    public Student(int id) {
        this.id = id;
    }

    public Student(int id, String name) {
        this(id);
        this.name = name;
    }

    public Student(int id, String name, int age) {
        this.id = id;
        this.name = name;
        this.age = age;
    }
}
//3 2 1
//3 2 1
//1 2 3
//3 2 1
//2 1 3